Hi,
I encountered a connection leak with the VirtuosoXADataSource when long checkpoints (more than 1 minute) occured.
During the checkpoint, the virtuoso response times are slow as explain in the documentation but sometimes the number of max connections is exceeded. (with a minConnection set to 5 and a maxConnection set to 15, I reached more than 40 connections.)
In attachment, you can find a patch to fix this problem.
With this patch, the number of connection is still under the maxConnection value.
I hope this patch will help you.
Regards,
Eric
Additional information : it is with the virtuoso opensource 6.1.2 and 6.1.3.
Provided patch fix the problem in the version 6.1.3.
Patch was applied